Venerida
Venerida is an order of mostly saltwater but also some freshwater bivalve molluscs. This order includes many familiar groups such as many clams that are valued for food and a number of freshwater bivalves.

Ken Hammond · Public Domain · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- NeoheterodonteiPBDB
- Diet
- suspension feederPBDB
- Life habit
- infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 419 million years on record.
The record covers at least 419.62 Mya to 11.7 ka. No occurrence read is dated outside 426.7 Mya to 0 Mya.
12,000+ occurrences of Venerida on record. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
12,000 occurrences read- Silurianunder 1%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassicunder 1%
- Early Jurassic1%
- Middle Jurassic2%
- Late Jurassic5%
- Early Cretaceous3%
- Late Cretaceous20%
- Paleocene3%
- Eocene12%
- Oligocene9%
- Miocene25%
- Pliocene8%
- Pleistocene11%
- Holocene1%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.
Found in
at least 818 formations
- Providence Formation306
- Woodbine Formation230
- Prairie Bluff Formation161
- Chipola Formation · Alum Bluff Group138
- Temblor Formation134
- Corsicana Marl Formation127
Loading coastlines…
The named rock units Venerida has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 794 further formations hold fewer occurrences each and are not listed. 2,277 occurrences have no formation on record, which is common for older literature.
Found in the same rock
1,043 taxa- Camptonectes58 sites
- Entolium orbiculare51 sites
- Nuculana50 sites
- Isognomon49 sites
- Ammonoidea47 sites
- Astarte47 sites
- Modiolus45 sites
- Buchia mosquensis44 sites
- Pinna44 sites
- Hartwellia43 sites
- Grammatodon42 sites
- Isocyprina42 sites
- Pycnodonte vesicularis41 sites
- Taimyrothyris37 sites
- Granocardium36 sites
- Pleuromya35 sites
- Protocardia striatula35 sites
- Belemnitida34 sites
- Aphrodina33 sites
- Cyprimeria32 sites
- Nucula32 sites
- Dentalium31 sites
- Bivalvia30 sites
- Eburneopecten scintillatus30 sites
The Paleobiology Database records at least 690 sites for Venerida, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
at least 639 references- Unpublished data on Cretaceous-Paleocene molluscan assemblages451
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain372
- The Molluscan Fauna of the Alum Bluff Group of Florida326
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf317
- Unpublished data284
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions277
- Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas232
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain208
- Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America203
- Molluscs at the K/Pg boundary in Argentina: Extinction and recovery patterns. unpublished Ph.D. thesis200
- Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne)198
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae).193
Each of the 12,000 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. That read hit its cap, so each count is a floor. 627 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Venerida
- Source
- Wikipedia/Commons
- Credit
- Ken Hammond
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Venerida was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Venerida”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itNeoheterodontei through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1854)